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|NDT.net Issue - 2008-04 - NEWS ||NDT.net Issue: 2008-04|
Publication: e-Journal of Nondestructive Testing (NDT) ISSN 1435-4934 (NDT.net Journal)
Corrosion under insulation (CUI) guidelines: (EFC 55)Research and Markets7, Dublin, Ireland
The Guidelines within this Document are intended for use on All Plants and Installations that contain Insulated Vessels Piping and Equipment
DUBLIN, Ireland--(BUSINESS WIRE)--Research and Markets has announced the addition of Corrosion Under Insulation (CUI) Guidelines: (EFC 55) to their offering.
Woodhead Publishing Ltd, March 2008, Pages: 176
Corrosion under insulation (CUI) refers to the external corrosion of piping and vessels that occurs underneath externally clad/jacketed insulation as a result of the penetration of water. By its very nature CUI tends to remain undetected until the insulation and cladding/jacketing is removed to allow inspection or when leaks occur. CUI is a common problem shared by the refining, petrochemical, power, industrial, onshore and offshore industries.
The European Federation of Corrosion (EFC) Working Parties WP13 and WP15 have worked to provide guidelines on managing CUI together with a number of major European refining, petrochemical and offshore companies including BP, Chevron-Texaco, Conoco-Phillips, ENI, Exxon-Mobil, IFP, MOL, Scanraff, Statoil, Shell, Total and Borealis. The guidelines within this document are intended for use on all plants and installations that contain insulated vessels, piping and equipment. The guidelines cover a risk-based inspection methodology for CUI, inspection techniques (including non-destructive evaluation methods) and recommended best practice for mitigating CUI, including design of plant and equipment, coatings and the use of thermal spray techniques, types of insulation, cladding/jacketing materials and protection guards. The guidelines also include case studies.
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Appendix A: Cost-economic evaluation Appendix B: Quality assurance Appendix C: Additional guidelines on the implementation of CUI best practice Maintenance and remediation issues; Minimum Sstandards; Types of insulation service; Surface preparation. Appendix D: Coatings General; Protective coatings; Thermal spray aluminium; Surface/moisture tolerance - alternative coatings; Tape coatings. Appendix E: Application of thermal sprayed aluminium (TSA) Thermal spray application; Use of organic top coats; Application strategies;
Thermal spray coating specification; Definitions; Referenced codes, standards and specifications; Coating philosophy; Coating system; Thermal spray coating material; Seal coat; Design; Surface preparation; Weather and surface conditions; Application process; Specific requirements for on-site thermal spray coating application; Piping field welds; Inspection and acceptance; Documentation. Appendix F: Insulation material types and forms Mineral fibre; Low density glass fibre; Calcium silicate; Cellular glass; Ceramic fibre Ppaper; Glass rope insulation; Self-setting cement; Flexible reusable insulation covers; Preformed rigid polyurethane foam (PUR/PIR); Flexible elastomeric foam (FEF);
Flexible elastomeric foam (EPDM); Polyethylene; Perlite; Vermiculite. Appendix G: Cladding/jacketing materials Metallic cladding materials; Non-metallic materials. Appendix H: Use of protection guards Design considerations; Method guidance notes. Appendix I: NDE/NDT techniques Visual inspection; Manual ultrasonic thickness measurement through inspection openings; Radiography; Real-time radiography (RTR); Guided wave ultrasonic measurements; Pulsed eddy current; Digital radiography; Infrared thermography; Neutron backscatter; Dye penetrant testing. Appendix J: Case studies Case studies 1-8
For more information visit http://www.researchandmarkets.com/reports/c87662